Waist restraint frame for standing balance rehabilitation training device

Abstract

The invention discloses a waist restraint frame for a standing balance rehabilitation training device, which comprises two waist adjusting sleeves, a waist cross beam, a left cross beam, a right cross beam and a fixing rod, the two ends of the waist cross beam are connected with the two waist adjusting sleeves respectively, a buffer spring is arranged in the middle of the waist cross beam, the front ends of the left cross beam and the right cross beam are fixedly connected with the two waist adjusting sleeves respectively, and the tail ends of the left cross beam and the right cross beam are suspended. The left end and the right end of the fixing rod are arranged on the left cross beam and the right cross beam in a sleeving mode through lantern rings respectively and limited through pluggable second limiting pins arranged on the left cross beam and the right cross beam, and the lantern rings and the cross beams are prevented from falling off. The flexibility and the use reliability of the device are remarkably improved.

Description

Technical Field

[0001] The present invention specifically relates to a waist restraint for a standing balance rehabilitation training device, belonging to the technical field of rehabilitation medical devices. Background Art

[0002] For patients with stroke, hemiplegia, brain nerve injury, etc., most of them have reduced or absent sense of balance and difficulty in standing independently, and need to walk and perform rehabilitation training with the help of family members or physicians. In order to improve the rehabilitation training effect of such patients, standing balance rehabilitation training devices have been developed on the market at present. The device uses a servo motor to tow the patient to stand and is assisted by personnel. The patient is strapped to the standing balance frame rehabilitation training device, and the patient performs standing training. At the same time, through the bilateral columns supported by double springs, the patient can shake freely, and the strength and balance of the patient's standing legs are rehabilitated. For example, the patent with the publication number CN106621225A in the prior art discloses a standing balance frame rehabilitation training device, which includes a left support device, a right support device, a base, and a table panel. The lower ends of the left support device and the right support device are connected to the base by springs, and the upper ends are fixed to the table panel. An electrical box is fixed on the table panel, a gyroscope sensor is arranged in the electrical box, and servo motor-driven traction belts for assisting the patient to stand are arranged on both sides of the electrical box. This device does not use an external power source and relies on the patient's own shaking for rehabilitation training, with high safety. It uses a gyroscope sensor to detect the shaking degree of the patient and evaluate the deviation degree of the patient's limbs. At the same time, the waist support device in this device includes a waist cross beam, a patient fixing rod, a left cross beam, and a right cross beam. These four components form a rigid rectangular structure and are respectively fixed to the left and right columns through two waist adjustment sleeves. However, in actual use, this waist support device has too strong restraint and small freedom, which is not conducive to balance rehabilitation training. Moreover, during frequent left and right shaking, the hard connection between the left and right ends of the waist cross beam and the waist adjustment sleeve is prone to looseness, detachment, and damage. Summary of the Invention

[0003] Aiming at the problems existing in the prior art, the present invention provides a waist restraint for a standing balance rehabilitation training device to replace the waist support device of the existing standing balance rehabilitation training device and solve the problems of too strong restraint and easy loosening and detachment of the connection.

[0004] The technical solution of the present invention is as follows: A waist restraint for a standing balance rehabilitation training device, comprising two waist adjustment sleeves, a waist cross beam, a left cross beam, a right cross beam, and a fixing rod. Two waist adjustment sleeves are respectively sleeved on the left column and the right column. A set screw is further provided on the waist adjustment sleeve to restrain the rotation of the waist adjustment sleeve relative to the column. A pluggable first limit pin is also provided on the column to limit the height position of the waist adjustment sleeve on the column. The two ends of the waist cross beam are respectively connected to the two waist adjustment sleeves, and a buffer spring is arranged in the middle of the waist cross beam, which divides the waist cross beam into two parts: a left waist cross beam and a right waist cross beam. The front ends of the left cross beam and the right cross beam are respectively fixedly connected to the two waist adjustment sleeves, and the ends of the left cross beam and the right cross beam are suspended. The left cross beam and the right cross beam are both cylindrical, and their outer diameters are the same. The left and right ends of the fixing rod are respectively sleeved on the left cross beam and the right cross beam through collar rings and are limited by pluggable second limit pins arranged on the left cross beam and the right cross beam to prevent the collar rings from falling off the cross beams.

[0005] Further, the inner diameter of the collar ring is 10 - 20 mm larger than the outer diameter of the left cross beam.

[0006] Further, a rotating shaft is fixedly arranged on the waist adjustment sleeve, and the two ends of the waist cross beam are rotationally connected to the waist adjustment sleeve through the rotating shaft.

[0007] Further, a square head is arranged at the end of the rotating shaft, a retaining ring is fitted on the square head, a threaded hole is further arranged on the end face of the rotating shaft along its axial direction, and a fixing bolt is fitted in the threaded hole.

[0008] Further, two lumbar pads are arranged on the fixing rod, and the positions of the two lumbar pads on the fixing rod are adjustable.

[0009] Beneficial effects: The waist restraint of the present invention forms a quadrilateral surrounded by a waist cross beam, a left cross beam, a right cross beam, and a fixing rod, which is a rectangle in the static state; during training, due to the buffer spring arranged in the middle of the waist cross beam, the left and right ends of the fixing rod are respectively sleeved on the left cross beam and the right cross beam through collar rings and the collar rings are in clearance fit with the left and right cross beams, and the waist adjustment sleeve can rotate around the column, so the quadrilateral will allow in-plane deformation during dynamic training and is no longer a strict rectangle, thereby reducing the restraint and providing higher freedom for balance training; in addition, when the waist restraint swings in the vertical direction, since the two ends of the waist cross beam are rotationally connected to the waist adjustment sleeve through the rotating shaft, it solves the problem that the waist cross beam and the waist adjustment sleeve are easily loosened and fallen off due to rigid connection in the traditional device, and significantly improves the use reliability of the device. Description of the Drawings

[0010] Figure 1It is a three-dimensional structural schematic diagram of a standing balance rehabilitation training device.

[0011] Figure 2 It is a partial schematic diagram of the initial static connection between the waist restraint frame and the left and right columns.

[0012] Figure 3 It is Figure 2 top view.

[0013] Figure 4 It is Figure 2 schematic diagram of another perspective.

[0014] Figure 5 It is a structural schematic diagram of the waist adjustment sleeve.

[0015] Figure 6 It is Figure 5 schematic diagram after hiding the retaining ring in

[0016] Figure 7 It is the top view of the waist restraint frame in a deformed state. Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0018] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0019] The reference numerals in the drawings are explained as follows: handrail 1, table board 2, waist restraint frame 3, leg support frame 4, left column 5, right column 6, left flexible support 7, right flexible support 8, base 9, waist cross beam 31, fixed rod 32, left cross beam 33, right cross beam 34, lumbar cushion 35, left waist cross beam 311, buffer spring 312, right waist cross beam 313, left collar 321, right collar 322, waist adjustment sleeve 51, first limit pin 52, rotating shaft 511, retaining ring 512, set screw 513, square head 514, threaded hole 515.

[0020] As Figure 1Shown is a schematic three-dimensional structure diagram of a standing balance rehabilitation training device, including a base 9. On the base 9, a left flexible support 7 and a right flexible support 8 are fixedly arranged at intervals. A left upright column 5 is connected to the left flexible support 7, and the left upright column 5 can swing back and forth, left and right around the left flexible support 7. A right upright column 6 is connected to the right flexible support 8, and the right upright column 65 can swing back and forth, left and right around the right flexible support 8. A tabletop 2 is fixedly connected to the tops of the left upright column 5 and the right upright column 6. A handrail 1 is fixedly connected to the edge of the tabletop 2. Leg supports 4 are fixedly connected to the middle and lower parts of the left and right upright columns 5 and 6. A waist restraint 3 is connected to the middle and upper parts of the left and right upright columns 5 and 6.

[0021] Such as Figure 2 、 3As shown in Figures 4, 5, and 6, the waist restraint frame 3 includes two waist adjustment sleeves 51, a waist crossbeam 31, fixed rods 32, a left crossbeam 33, and a right crossbeam 34. Among them, the two waist adjustment sleeves 51 are respectively sleeved on the left column 5 and the right column 6. A setscrew 513 is also provided on the waist adjustment sleeve 51. The setscrew 513 is used to restrain the rotation of the waist adjustment sleeve 51 relative to the column. After the setscrew is loosened, the waist adjustment sleeve can rotate freely around the column. When the setscrew is tightened, the waist adjustment sleeve cannot rotate or there is a certain resistance when rotating. A pluggable first limit pin 52 is also provided on each column. The first limit pin 52 is used to limit the height position of the waist adjustment sleeve on the column, thereby determining the height of the waist restraint frame on the column to better adapt to the patient's height. Both ends of the waist crossbeam 31 are respectively connected to the two waist adjustment sleeves. A buffer spring 312 is provided in the middle of the waist crossbeam. The buffer spring 312 divides the waist crossbeam into two parts: a left waist crossbeam 311 and a right waist crossbeam 313. The two ends of the buffer spring are fixedly connected to the left waist crossbeam and the right waist crossbeam. In the initial state, the three of them are collinear. The left waist crossbeam 311 and the right waist crossbeam 313 are rigid structures, and the buffer spring 312 is a flexible structure. With such a rigid-flexible combination, when the waist crossbeam is subjected to an external force, it can be deformed or bent, and its length can be shortened or elongated. A rotating shaft 511 is fixedly provided on the waist adjustment sleeve 51. Both ends of the waist crossbeam are rotationally connected to the waist adjustment sleeve through the rotating shaft, that is, the left end of the left waist crossbeam 311 is sleeved on the rotating shaft and rotationally connected to the waist adjustment sleeve, and the right end of the right waist crossbeam 313 is sleeved on the rotating shaft and rotationally connected to the waist adjustment sleeve. In order to prevent the waist crossbeam from falling off the rotating shaft, a square head 514 is provided at the end of the rotating shaft. A retaining ring 512 is installed on the square head 514. A threaded hole 515 is also provided on the end face of the rotating shaft along its axial direction. A fixing bolt is installed in the threaded hole. In this way, the fixing bolt presses the retaining ring, and the fixing bolt, the retaining ring, and the rotating shaft are connected as a whole. The retaining ring prevents the waist crossbeam from falling off the rotating shaft and does not affect the rotation of the waist crossbeam relative to the rotating shaft. This solves the problem that the connection between the waist crossbeam and the waist adjustment sleeve in the traditional device is easily loosened and fallen off during continuous rehabilitation shaking use due to the rigid fixed connection by bolts, and significantly improves the use reliability of the device.

[0022] As Figure 2As shown, the front ends of the left cross beam 33 and the right cross beam 34 are respectively fixedly connected to the left and right waist adjustment sleeves 51. When in a static state, the two are horizontally parallel and spaced apart. The ends (rear ends) of the left cross beam 33 and the right cross beam 34 are suspended. The length of the left cross beam 33 is greater than that of the right cross beam 34. Both the left cross beam 33 and the right cross beam 34 are cylindrical and have the same outer diameter. The left and right ends of the fixed rod 32 are respectively sleeved on the left cross beam 33 and the right cross beam 34 through a left collar 321 and a right collar 322, and are limited by a pluggable second limit pin provided on the left and right cross beams to prevent the collars from falling off the cross beams. In this patent, it is also defined that the inner diameter of the collar is 10 - 20 mm greater than the outer diameter of the left cross beam and / or the right cross beam. Such a setting, on the one hand, facilitates the forward and backward movement of the fixed rod 32 along the axial direction of the left and right cross beams. At the same time, it also allows the length direction of the fixed rod 32 and the axial direction of the left and right cross beams not to be strictly perpendicular. It allows the included angle between the two to vary within the range of 75 - 105 degrees with 90 degrees as the center. When the two waist adjustment sleeves 51 can rotate around the left and right columns, the shape of the quadrilateral formed by the waist cross beam 31, the fixed rod 32, the left cross beam 33, and the right cross beam 34 can also change. For example, it can change from the initial rectangle (see Figure 3 ) to a non-rectangle (see Figure 7 ). After the change, it can be a parallelogram or a trapezoid or other special shapes, etc. Moreover, after deformation, the buffer spring 312 can also play a driving role in restoring it to the original rectangular state. Compared with the waist restraint frame in the original product being a strict rectangle, this patent allows the waist restraint frame to have more degrees of freedom of deformation, thereby providing higher flexibility for the patient's balance training and improving the training effect.

[0023] In order to protect the patient's waist, two lumbar pads 35 are also provided on the fixed rod 32, and the positions of the two lumbar pads 35 on the fixed rod 32 are adjustable.

[0024] The usage method of the standing balance rehabilitation training device is as follows: First, pull out the second limit pins on the left cross beam 33 and the right cross beam 34, and move the fixed rod 32 backward. Since the length of the right cross beam 34 is shorter, the right sleeve 322 falls off the right cross beam 34 first. At this time, release the fixed rod 32, and the left sleeve 321 of the fixed rod 32 rotates around the left cross beam 33 and droops freely; then support the patient to step on the base 9 and stand up, so that the leg support frame 4 supports the legs, the front chest can lie on the table board 2, and hold the armrest 1 with both hands. Then rotate the fixed rod 32, align the right sleeve 322 with the right cross beam 34 and put it on, and move the fixed rod 32 forward to enclose the patient's waist, and insert the second limit pin; adjust the position and spacing of the two lumbar pads 35; if necessary, the height of the waist restraint frame 3 can also be adjusted by the setscrew 513 and the first limit pin 52. After preparation, under the support of the left flexible support 7 and the right flexible support 8, the patient can swing the body forward, backward, left and right for standing balance rehabilitation training. This patent focuses on the improvement of the structure and function of the waist restraint frame 3. For the structure and function of other parts of the standing balance rehabilitation training device, reference can be made to the prior art and will not be elaborated herein.

Claims

1. A waist restraint for a standing balance rehabilitation training device, comprising two waist adjustment sleeves, a waist cross beam, a left cross beam, a right cross beam, and a fixing rod, characterized in that, The two waist adjustment sleeves are respectively sleeved on the left column and the right column. Plug-in first limit pins are provided on both the left column and the right column, and the first limit pins are used to limit the height position of the waist adjustment sleeves on the columns. The front ends of the left cross beam and the right cross beam are respectively fixedly connected to the two waist adjustment sleeves, and the ends of the left cross beam and the right cross beam are suspended. The left and right ends of the fixed rod are respectively sleeved on the left cross beam and the right cross beam through collar rings. The two ends of the waist cross beam are respectively connected to the two waist adjustment sleeves. The waist cross beam, the left cross beam, the right cross beam, and the fixed rod enclose a quadrilateral structure. A buffer spring is arranged in the middle of the waist cross beam, and the buffer spring divides the waist cross beam into two parts: a left waist cross beam and a right waist cross beam.

2. The waist restraint for a standing balance rehabilitation training device according to claim 1, characterized in that, Both the left cross beam and the right cross beam are cylindrical, and they have the same outer diameter. Plug-in second limit pins are provided on the left cross beam and the right cross beam.

3. The waist restraint of a standing balance rehabilitation training device according to claim 2, characterized in that, The inner diameter of the collar ring is 10 - 20 mm larger than the outer diameter of the left cross beam.

4. The waist restraint for a standing balance rehabilitation training device according to claim 1, wherein, A rotating shaft is fixedly arranged on the waist adjustment sleeve, and the two ends of the waist cross beam are rotationally connected to the waist adjustment sleeve through this rotating shaft.

5. The waist restraint for a standing balance rehabilitation training device according to claim 4, characterized in that, A square head is arranged at the end of the rotating shaft, a retaining ring is installed on the square head, a threaded hole is also provided on the end face of the rotating shaft along its axial direction, and a fixing bolt is installed in the threaded hole in a matching manner.

6. The waist restraint for a standing balance rehabilitation training device according to claim 1, wherein, Two lumbar pads are arranged on the fixed rod, and the positions of the two lumbar pads on the fixed rod are adjustable.

7. The waist restraint for a standing balance rehabilitation training device according to claim 1, characterized in that, A setscrew is also provided on the waist adjustment sleeve, and the setscrew is used to restrict the rotation of the waist adjustment sleeve relative to the column.

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